Slight power loss while pulling
#1
Slight power loss while pulling
I've gone thru many of the threads, but started falling asleep after the 11th page...
I have 147,000 miles on my 2004 Expedition, Eddie Bauer edition, with heavy duty tow package. 2 years ago I could pull 3400lbs of hay on my flat bed car carrier and not feel my load. Now, my beloved steel steed seems to labor going up hills. I took 'Rose' to my local Army instillation Auto Care Center but they couldn't find anything wrong. I have also noticed that my mileage has decrease, not significantly, but still down from 15mpg to 11 mpg when I tow.
My husband replaced the spark plugs in the summer before he deployed and I have the oil changed regularly. What else could be causing her to struggle? Age? She doesn't smoke and there's no beer belly...
I have 147,000 miles on my 2004 Expedition, Eddie Bauer edition, with heavy duty tow package. 2 years ago I could pull 3400lbs of hay on my flat bed car carrier and not feel my load. Now, my beloved steel steed seems to labor going up hills. I took 'Rose' to my local Army instillation Auto Care Center but they couldn't find anything wrong. I have also noticed that my mileage has decrease, not significantly, but still down from 15mpg to 11 mpg when I tow.
My husband replaced the spark plugs in the summer before he deployed and I have the oil changed regularly. What else could be causing her to struggle? Age? She doesn't smoke and there's no beer belly...
#3
Grumpy Old Man
Your 2004 probably has electronic ignition, so it doesn't have a distributor cap or rotor. Changing the spark plugs is about all you can do for a "tuneup" on a gasoline engine that has electronic ignition. Spark plug wires? Well, yeah, on old jalopies, but I wouldn't suspect the ignition wires on a 2004. But be certain the air filter is clean and no unfiltered air can get past it and into the engine. Also be certain the emissions equipment is all working as designed. The electronic diagnosis will tell you if you have problems with your emissions equipment or ignition wires or anything else that could cause your Ford to loose power and torque.